ON VIDEO CAPTION THINNING BASED ON TEMPLATE MATCHING AND CURVE FITTING
Trs Information · Computer Applications and Software · 2014
In recognition process of video caption,irregular sawtooth will appear at the edge of the Chinese characters after image binarisation due to the generally low pixels of the caption. In this paper,a method based on template matching and curve fitting is proposed to realise the thinning of this kind of Chinese characters. In order to realise strokes extraction,we use 0°,45°,90°and 135° line segments as the templates to match four kinds of elementary strokes in terms of horizontal,left-falling,vertical and right-falling strokes in Chinese characters respectively. And the quadratic Bezier curve is used to fit the left-falling stroke and right-falling stroke and to realise the redrawing of the strokes. Comparative experiment illustrates that this method is effective in video caption thinning,and the effect can be recognised more precisely.